55504 has 10 divisors (see below), whose sum is σ = 107570. Its totient is φ = 27744.

The previous prime is 55501. The next prime is 55511. The reversal of 55504 is 40555.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 32400 + 23104 = 180^2 + 152^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1719 + ... + 1750.

It is an arithmetic number, because the mean of its divisors is an integer number (10757).

2⁵⁵⁵⁰⁴ is an apocalyptic number.

It is an amenable number.

55504 is a deficient number, since it is larger than the sum of its proper divisors (52066).

55504 is a wasteful number, since it uses less digits than its factorization.

55504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3477 (or 3471 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 55504 is about 235.5928691620. The cubic root of 55504 is about 38.1453344897.

The spelling of 55504 in words is "fifty-five thousand, five hundred four".